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Versatile design. They connect the taillights, turn signals, electric trailer brakes and aux power. It provides two standard trailer wiring sockets, a 4-way flat and an RV blade 7-way round socket, allowing for versatile towing options.
Reliable connection. This trailer wiring harness socket is designed for specific vehicles with an industry-standard USCAR socket. This dual-output connector is a great upgrade for a variety of vehicles with a USCAR socket. For long-lasting use and a reliable connection, the housing of this dual 7-pin and 4-pin trailer wiring socket is made from durable black plastic that will never rust or corrode.


Connectors can be used to connect the taillights, no cutting and splicing, trailer brakes and auxiliary power.
Trailer wiring harness socket plugs into factory 7-way USCAR socket on your vehicle, reverse lights, turn signals, brake lights, mounting bracket and hardware included. Uscar specific. Note:please check the connector behind your vehicle before buying, GM, Compatible with Ford, thanks!. Durable construction. This trailer wiring harness socket is designed for specific vehicles with a factory tow package, Dodge vehicles with the factory 7-way USCAR socket.

Easy and cost effective - provide all the needed electrical and mounting hardware connector kit to provide BOTH the 4 wire flat and 7 RV blade towing plug for your trailer. Uscar compatible - this factory dual-output connector is designed for specific vehicles with an industry-standard USCAR socket, provides two standard trailer wiring connections, a 4-way flat and a 7-way RV blade round socket, allowing for Multi-Tow options.
Prewired for simple installation - simple do it yourself installation, splicing or tapping required, connector plugs directly into OEM tow package wiring harness - no cutting, up to 12 inches pigtails for flexible pluging.





Marine, automotive, scientific, home wiring projects - you name it. Plastic housing will not open after it has been snapped on the wire.
1. Hopkins Towing Solutions
#ad
Hopkins 40955 Multi-Tow T-Connector Wiring Kit
#adHopkins Towing Solutions #ad - Provides 7rv blade and 4-wire flat towing. Plugs directly into OEM Original Equipment Manufacturer wiring system. Impact and corrosion resistant. All accessories included for easy installation. Simply replaces the 7-way connector that came with your vehicle.More information #ad
Brand | Hopkins Towing Solutions #ad |
Manufacturer | Hopkins Towing Solution #ad |
Height | 3.25 Inches |
Length | 8.88 Inches |
Weight | 0.8 Pounds |
Width | 3.88 Inches |
Part Number | 40955 |
Model | 40955 |
Warranty | Hopkins warrants all products to be free from defects in material and workmanship, under normal use and service, for a peirod of 90 days from the date of original purchase, with the exception of the Brake-Force and Impulse brake control items, which are warranted to be free from defects in material and workmanship, under normal use and service, for the original buyer's lifetime |
More information #ad
2. CURT
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Factory Tow Package and USCAR Socket Required, 4-Pin Connectors, CURT 55774 Dual-Output Vehicle-Side 7-Pin
#adCURT #ad - These trailer wiring sockets come ready to plug into existing vehicle wiring, brake lights, reverse lights, using the factory USCAR socket. Weather-resistant. Uscar-specific. The 7-pin socket has a spring-loaded dust cover that keeps the connection points dry and protected when not in use HUB_US: AD25.Versatile design. They connect the taillights, turn signals, electric trailer brakes and aux power. It provides two standard trailer wiring sockets, a 4-way flat and an RV blade 7-way round socket, allowing for versatile towing options.
More information #ad
Durable construction. This two-way trailer wiring socket is designed to outlast weather exposure. Reliable connection. This trailer wiring harness socket is designed for specific vehicles with an industry-standard USCAR socket. This dual-output connector is a great upgrade for a variety of vehicles with a USCAR socket. For long-lasting use and a reliable connection, the housing of this dual 7-pin and 4-pin trailer wiring socket is made from durable black plastic that will never rust or corrode.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 2 Inches |
Length | 9 Inches |
Weight | 1.3 Pounds |
Width | 4 Inches |
Part Number | 55774 |
Model | 55774 |
Warranty | Manufaturer warranty |
More information #ad
3. Hopkins Towing Solutions
#ad
Hopkins 40975 Multi-Tow Plug-In Simple Wiring Kit
#adHopkins Towing Solutions #ad - Includes mounting bracket, hardware, and step-by-step instructions for easy installation. Multi-tow feature provides multiple 7 RV blade and 4 wire flat towing options from one connector.More information #ad
Utilizes oem connectors create an exact fit and enhanced weatherproofing. Plug-in simple wiring Kit installation means no cutting or splicing, saving time and hassle. Impact and corrosion resistant, and pre-greased terminals for additional protection.Brand | Hopkins Towing Solutions #ad |
Manufacturer | Hopkins Towing Solution #ad |
Height | 3.2 Inches |
Length | 9 Inches |
Weight | 0.4 Pounds |
Width | 3.5 Inches |
Part Number | 40975 |
Model | 40975 |
More information #ad
4. Oyviny
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GM, Factory Tow Package and USCAR 7 Way Socket Required, Dodge Vehicles, Oyviny Multi-Tow Vehicle-Side 7-Way Blade and 4-Way Flat Trailer Connector Wiring Harness for Ford
#adOyviny #ad - Dust cover. Our two-way trailer wiring harness socket made from durable ABS plastic to prevent rusting and enhance appearance; A heavy duty black wire loom keeps the wiring contained and protects the harness for long-lasting use. This dual-output trailer hitch wiring kit simply replaces the 7-Way USCAR connector that came with your vehicle, it features both 4 Pin and 7 Pin connector in case you have multiple trailers with different connectors, adding versatile towing options.Connectors can be used to connect the taillights, no cutting and splicing, trailer brakes and auxiliary power.
More information #ad
Plug and play. Multi-plug design. Both 7 way rv connector and 4 way flat socket comes with rubber dust covers, which keeps the connection points dry, and protect the plug from dusts and corrosion. We offer 1 year warranty for this T-Connector trailer wiring harness. Trailer wiring harness socket plugs into factory 7-way USCAR socket on your vehicle, reverse lights, turn signals, brake lights, mounting bracket and hardware included. Uscar specific. Note:please check the connector behind your vehicle before buying, GM, Compatible with Ford, thanks!. Durable construction. This trailer wiring harness socket is designed for specific vehicles with a factory tow package, Dodge vehicles with the factory 7-way USCAR socket.
Brand | Oyviny #ad |
Manufacturer | Oyviny #ad |
Part Number | OV2128-001 |
More information #ad
5. CARROFIX
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Multi-Tow T-Connector Wiring Harness for Factory Tow Package, USCAR Socket Required, CARROFIX Dual-Output Vehicle-Side 7 RV Blade and 4-Pin Flat Connectors
#adCARROFIX #ad - Standard connection - this trailer wiring connector is designed to plug into existing vehicle wiring by using the factory USCAR socket to output the taillights, brake lights, turn signals, reverse lights, electric trailer brakes and aux power.Easy and cost effective - provide all the needed electrical and mounting hardware connector kit to provide BOTH the 4 wire flat and 7 RV blade towing plug for your trailer. Uscar compatible - this factory dual-output connector is designed for specific vehicles with an industry-standard USCAR socket, provides two standard trailer wiring connections, a 4-way flat and a 7-way RV blade round socket, allowing for Multi-Tow options.
More information #ad
Durable construction - to ensure long-lasting reliability, it comes with a protective cap for 4 way flat to keep the connector socket clean when not in use, weathertight spring-loaded dust cover on 7 way round socket lid keeps out water and debris. Prewired for simple installation - simple do it yourself installation, splicing or tapping required, connector plugs directly into OEM tow package wiring harness - no cutting, up to 12 inches pigtails for flexible pluging.
Brand | CARROFIX #ad |
Manufacturer | CARROFIX #ad |
Weight | 0.98 Pounds |
Part Number | C0161 |
More information #ad
6. Hopkins Towing Solutions
#ad
Hopkins 40985 Universal Multi-Tow Harness Connector
#adHopkins Towing Solutions #ad - For use with gm / ford / import multi-tow part numbers 40955, 40965, or 40975. Splices onto vehicles' wiring system. Allows for multi-tow installation on any vehicle. Used to retro-fit gm trucks between 1999-2002 to allow use of the GM OE plug connector. Easy to use and install.More information #ad
Brand | Hopkins Towing Solutions #ad |
Manufacturer | Hopkins Towing Solution #ad |
Height | 8.88 Inches |
Length | 6 Inches |
Weight | 0.4 Pounds |
Width | 6 Inches |
Part Number | 40985 |
Model | 40985 |
More information #ad
7. Hopkins Towing Solutions
#ad
Hopkins 47180 Endurance Multi-Tow 4 Flat to 7 RV Blade and 4 Flat Wiring Kit
#adHopkins Towing Solutions #ad - Multi-tow feature provides multiple towing options from one connector. Includes mounting bracket and hardware makes for easy installation or replacement.More information #ad
Designed for existing 4 flat to adapt to the 7 RV blade. Reinforced lid opens 180 degrees to prevent breaking. Corrosion resistant terminals and enhanced weatherproofing.Brand | Hopkins Towing Solutions #ad |
Manufacturer | Endurance #ad |
Height | 2.5 Inches |
Length | 5.7 Inches |
Weight | 0.85 Pounds |
Width | 3.6 Inches |
Part Number | 47180 |
Model | 47180 |
More information #ad
8. Hopkins Towing Solutions
#ad
Hopkins 40974 Multi-Tow 7 Blade and 4 Flat Connector Packaging may vary
#adHopkins Towing Solutions #ad - Multi-tow connector provides multiple towing options from one connector. Impact and corrosion resistant. Pre-greased terminals for added protection. Utilizes oem connectors create an exact fit and maximum weatherproofing. Includes step-by-step instructions. Packaging may vary slightly.More information #ad
Brand | Hopkins Towing Solutions #ad |
Manufacturer | Hopkins Manufacturing #ad |
Height | 6.88 Inches |
Length | 3.25 Inches |
Weight | 0.44 Pounds |
Width | 3.88 Inches |
Part Number | 40974 |
Model | 40974 |
Warranty | 90-day warranty |
More information #ad
9. Hopkins Towing Solutions
#ad
Endurance Hopkins 40950 Multi-Tow 7 Blade and 4 Flat Vehicle Wiring Kit
#adHopkins Towing Solutions #ad - Mounting bracket and accessories included. Utilizes oem connectors create an exact fit and maximum weatherproofing. Multi-tow feature provides multiple towing options from single connector.More information #ad
Powers tail lights and turn signals on towed vehicle. Weathproof lid opens 180 degrees and oversized hinge offers ultimate durability and.Brand | Hopkins Towing Solutions #ad |
Manufacturer | Hopkins Towing Solutions #ad |
Height | 6.88 Inches |
Length | 2.88 Inches |
Weight | 0.47 Pounds |
Width | 3.88 Inches |
Part Number | 40950 |
Model | 40950 |
Warranty | 3 Yr Consumer Limited |
More information #ad
10. Nilight
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50004R 120 Pcs/60 Pairs Quick Splice Wire Terminals T-Tap Self-stripping with Nylon Fully Insulated Male Quick Disconnects Kit, 2 Years Warranty, Nilight
#adNilight #ad - Self-stripping electrical tap connectors - Nilight self-stripping electrical t-tap connectors makes tapping into an existing wire a quick and easy job. Perfectly fitting male quick disconnects - Nylon male disconnects have been designed to lock tightly on the T-Tap connectors to prevent sliding out.Marine, automotive, scientific, home wiring projects - you name it. Plastic housing will not open after it has been snapped on the wire.
More information #ad
Quality t-tap connector housing - quick splice T-Tap connectors will securely lock on the wire. Versatile kit - 60 piece t-tap wire connectors plus 60 piece; Male Quick Disconnects will last for numerous wiring projects. Thick tinned copper contacts - Thicker tinned copper contacts provide maximum conductivity and prevents the wire from shorting out efficiently.Brand | Nilight #ad |
Manufacturer | Nilight #ad |
Height | 5 Inches |
Length | 4 Inches |
Weight | 0.44 Pounds |
Width | 0.2 Inches |
Part Number | 50004R |
Model | 50004R |
Warranty | 2 Years Warranty |
More information #ad